There is no way to know exactly how long it took to build the Egyptian pyramids. Herodotus was told that the great pyramid at Giza was built in twenty years; however, scientists today claim it could have been built in as few as ten years.
You've got to build a 3 dimensional triangle. Lay the first three matches flat on the table touching one another in the shape of a triangle, then put the remaining three matches at each of the corners of the original three matches so that the second set of three meet together at the apex above the original three matches. Visually, it would take the shape of a pyramid. That will give you four equal triangles.
I think about 100 years
The edges are 4 inches long. Than you take how many faces and than multiply. Your answer is 16.
A minimum of 2 triangles are needed, but you can also make a rectangle with 3 or more triangles.
It took 273 days for them to build the pyramid
About 20 years for the great pyramid.
It depends on what pyramid your talking about. The Great Pyramid took at least 20 years to build.
A long time!
78 years
2 years
it took 30-40 years to build a pyramid
It will take about 350 years.
The Great pyramid of Khufu took 20 years to build. The actual time an individual pyramid took to build depends on its size.
2000 years
like 1minute?
It is estimated that the Great Pyramid took 20 years to build.